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How to set variable from a SQL query?
I'm trying to set a variable from a SQL query:
9 Answers
9
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List all sequences in a Postgres db 8.1 with SQL
I'm converting a db from postgres to mysql.
19 Answers
19
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Check if a temporary table exists and delete if it exists before creating a temporary table
...aps I'm not understanding the problem.
The following works fine for me in SQL Server 2005, with the extra "foo" column appearing in the second select result:
IF OBJECT_ID('tempdb..#Results') IS NOT NULL DROP TABLE #Results
GO
CREATE TABLE #Results ( Company CHAR(3), StepId TINYINT, FieldId TINYINT...
Best practices for SQL varchar column length [closed]
Every time is set up a new SQL table or add a new varchar column to an existing table, I am wondering one thing: what is the best value for the length .
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Real escape string and PDO [duplicate]
I'm using PDO after migrating away from the mysql library. What do I use in place of the old real_escape_string function?
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SQL error “ORA-01722: invalid number”
...ou have to make it a String yourself, marking the value explicitly in your SQL expression, to surround it by ' ' OR " ".
– Franta
Jun 25 at 15:00
add a comment
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Oracle PL/SQL - How to create a simple array variable?
I'd like to create an in-memory array variable that can be used in my PL/SQL code. I can't find any collections in Oracle PL/SQL that uses pure memory, they all seem to be associated with tables. I'm looking to do something like this in my PL/SQL (C# syntax):
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Unioning two tables with different number of columns
... when you're using set based operators so Kangkan's answer is correct.
SAS SQL has specific operator to handle that scenario:
SAS(R) 9.3 SQL Procedure User's Guide
CORRESPONDING (CORR) Keyword
The CORRESPONDING keyword is used only when a set operator is specified. CORR causes PROC SQL to match the...
How do you check if a certain index exists in a table?
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Just to add: "Beginning with SQL Server 2016 you can use the DROP INDEX IF EXISTS syntax." MS documentation
– heringer
Sep 1 '17 at 11:39
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SQL “between” not inclusive
...nted to display, export, import, or write a class with a datetime. I think SQL Server has plenty of built-in functionality to manipulate and compare datetimes for most purposes.
– Tim Lehner
May 3 '13 at 13:19
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